Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number A27006-21 with rapid responses always offered by our staff. To ensure that you locate and procure exactly what you need with ease, we list parts with as much information as we can. For example, part number A27006-21 It is listed as Sheave Block. component manufactured by The Boeing Company, specifically under CAGE Code 81205. It is also accompanied by the NSN 3020016581500 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 3020 Gears Pulleys Sprockets and Transmission Chain.